Enzyme Presoak is specially formulated to remove protein-based stains and soils. It attacks food-based protein and stains as well as blood, fecal matter and grass stains. Quickly removes both fresh stains and those “set” by age, heat and unsuccessful prior removal. The enzyme system provides broad spectrum activity against numerous soils under varied use conditions, giving superior cold temperature results. It attacks the stain, not the fabric, for excellent results and improved fabric life.